The Biogas Plant of double diaphragm is made of high-strengthened, high-elastic synthetic engineering diaphragm and of perfect anti-acid and anti-corrosion ability. Its capacity of absorbing the ambient heat and storing it is 30% higher than that of other material.

The Biogas Plant is made by adopting technology of combining internal digester and external protector. In this way ,it not only minimizes the possibility of doing damage to the internal digester, prolong its lifespan, and also create an complete Oxygen-free room for anaerobic micro organisms to do fermentation, which in return increases the Biogas Output ratio.